RedFred Posted June 13, 2017 Author Report Share Posted June 13, 2017 14 minutes ago, Skullz said: Those usually pop when you exceed them by a fair amount before they blow, or when you get a short. You might not be pulling enough power all at once to pop em. I think there was a discussion on those some time back about how much more it takes for them to blow and you should be using lower rated fuses. Interesting. My only experience with a blown fuse in the past was when I went from 50A fuses on stock electrical and a 1200w amp, to a Brutus 3K without swapping fuses. Blew it just about as soon as I turned the volume up. I was just expecting these fuses to blow in the same manner I guess. Link to comment Share on other sites More sharing options...
Reaper Posted June 13, 2017 Report Share Posted June 13, 2017 Honestly I wouldn't worry about it. If they pop then there's a problem. Link to comment Share on other sites More sharing options...
Kyblack76 Posted June 13, 2017 Report Share Posted June 13, 2017 Well, it would be nice to see if his alt set up is doin work as should also. I would clamp them. Just me. I wouuld have had my fluke clamp on both the second I installed them and turned the truck on. Again, just me. I like knowing..... SMD SUPER SELLER The Burban Build Blazer Build sold Acura trunk build sold Link to comment Share on other sites More sharing options...
reedal Posted June 13, 2017 Report Share Posted June 13, 2017 56 minutes ago, RedFred said: It shoots up anytime there isn't a hard bass line. I would clamp it and make sure you're getting what you paid for since you drop straight to battery resting voltage SMD Tool Map https://www.stevemeadedesigns.com/board/topic/193176-smd-tool-map-new-november-2014/ Build log https://www.stevemeadedesigns.com/board/topic/197217-reeds-03-tahoe-hat-sqaq-singer-xs-shca-cockbox-80prs/?page=32 Link to comment Share on other sites More sharing options...
ChevyBoy95 Posted June 13, 2017 Report Share Posted June 13, 2017 Just because your voltage is low doesnt mean you are fully tapping your alternators. Check front battery voltage and amplifier voltage under the same conditions under load. I have seen situations where the front was like 13.3v (so the alts werent fully being drawn on), but the rear was like 12.7v and the guy was wondering why he was only pulling 150a from his 300+a alt revved. Best Score to Date : 160.5 dB Outlaw (47Hz)[4 XM 15's & 2 Taramps Bass 12k's] BL : http://www.stevemeadedesigns.com/board/topic/147800-chevyboy95s-4-15s-7krms-wall-1533-db-on-half-power/YouTube: http://www.youtube.com/hitemwiththeflex/ Link to comment Share on other sites More sharing options...
ChevyBoy95 Posted June 13, 2017 Report Share Posted June 13, 2017 And about the fuses... fuses rarely pop are their rating. 200A fuse will take a while to pop with 200A through it. They need time to heat up before they blow as well. Most of the time they do blow is due to a short (500+A), or if you have like a single 150A fuse on a 7k. Reasons why in MECA (?) they can get so much power in a low fuse rating class. Best Score to Date : 160.5 dB Outlaw (47Hz)[4 XM 15's & 2 Taramps Bass 12k's] BL : http://www.stevemeadedesigns.com/board/topic/147800-chevyboy95s-4-15s-7krms-wall-1533-db-on-half-power/YouTube: http://www.youtube.com/hitemwiththeflex/ Link to comment Share on other sites More sharing options...
snafu Posted June 14, 2017 Report Share Posted June 14, 2017 Fuse failures are rated based on current vs. time. ANL Fuses, like those from Cooper Bussman, have published charts that correspond to fuse failure. Car Audio fuses are all over the map, based on who actually builds them. Tony Candela - SMD Sales & Marketing Email me at [email protected] to learn about becoming an SMD Partner! Link to comment Share on other sites More sharing options...
Wicks Posted June 14, 2017 Report Share Posted June 14, 2017 Fuses are thermal devices, not circuit breakers. A 100A fuse will not blow at 101A. As stated above, it takes considerable time and heat to blow them. They are there for fault protection when a wire gets fully shorted too ground. The rating on the fuse is what it can safely carry. If you use a fuse too small for the application, you may not notice any issue and it may not blow initially, BUT it could be a bottleneck for the current and cause some voltage drop. This post sent with 100% recycled electrons. 2004 BMW M3Mechman 280A 2 - XS Power XP30001 - XS Power D375 500F of Maxwell SuperCaps (soon to be 1000F) iPadMini2Dash mounted O-scopeAudison bitOne (Remote DRC MP) Highs Amp - PPI Art A404 Hertz HSK130 (HSK165 waiting...) DC Audio DC9.0K 2- DC Audio XL12m2LEGAL - 147.3dB @ 41Hz OUTLAW - 150.2dB @ 45Hz OUTLAW - 145.7dB @ 30Hz JUNE 2014 SOTM WINNER 2014 COLORADO PEOPLE'S CHOICE WINNER SOTM BUILD:http://www.stevemeadedesigns.com/board/topic/141656-wicks-e46-m3-build-bass-turbo-button-and-a-big-new-addition/page-68#entry2802026 Link to comment Share on other sites More sharing options...
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